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Iranian Journal of Environmental Health, Science and Engineering
Iranian Association of Environmental Health (IAEH)
ISSN: 1735-1979
Vol. 7, No. 1, 2010, pp. 63-70
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Bioline Code: se10007
Full paper language: English
Document type: Research Article
Document available free of charge
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Iranian Journal of Environmental Health, Science and Engineering, Vol. 7, No. 1, 2010, pp. 63-70
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Removal Of Reactive Blue 19 By Adding Polyaluminum Chloride To Sequencing Batch Reactor System
Mehrali, Sh.; Moghaddam, M. R. Alavi & Hashemi, S. H.
Abstract
The main objective of this study was to evaluate Reactive Blue 19 dye removal efficiency in aerobic sequencing batch reactor (SBR) process by adding polyaluminum chloride (PACl). PACl was added to the reactors in concentrations of 0, 1, 5, 15 and 30 mg-Al/L (SBR1 to SBR5) after filling periods. Initial dye concentrations were selected to be 40 mg/L for all reactors. The averages of dye removal efficiencies were more than 57% in all reactors. The maximum and minimum dye removal efficiencies were 71.7% ± 13.6 and 57.7% ± 34.3 in SBR3 and SBR4, respectively. According to the obtained results, PACl had not any significant effects on the COD removal efficiency. The MLSS and MLVSS concentration of SBRs had an increasing rate during whole operation time and reached from 2500 mg/L (1st day) to 4900 mg/L (39th day). The maximum increasing rate was 50% in SBR5.
Keywords
Biological treatment, Sequencing batch reactor, Reactive Blue 19, Polyaluminum chloride
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